Maybe the ppl they hired had a lower attrition rate! Maybe the people hired required less supervision and training than the CTI graduates would have! Maybe this had rippling effects on increasing their hiring pipeline as people of color were more likely to see opportunities here.

Your comment presuming it was at best neutral, and any likely change was for the worse is exactly what racism looks like.

Except they had a much higher attrition rate because ATC is a terrible job.